Although it can be fun, drilling into concrete, most homeowners can accidentally damage their home while doing so. It can be difficult to understand the density and strength of the concrete. While concrete is quite useful as a building material, it can be difficult to manage while drilling a hole in a concrete wall or setting up a fence on a concrete driveway. It can be very risky while conducting such activities and a poorly executed attempt can be fatal too.
Drilling into concrete is quite simple and you can drill a hole using the old rotary drill and few masonry tools that might be lying in your backyard. As long as you are taking proper care to not burn out the drill motor or the drill bit. However, there is a difference between cosmetic concrete and older concrete that is used in old homes and cutting 100-year old concrete with regular drilling would not work. It would be best to use an electric drill while digging deep holes in older concrete walls.
These electric drills are specially designed for drilling into hard concrete or rock and they are widely available at local shops. A rotary hammer can bore up to a 2-inch deep hole in few minutes only. When you are buying or renting a drill, make sure to get a drill with good power and speed settings and spare tools.
Try to follow these steps while drilling concrete walls and you will get the best result-
1. Mark the required portion with a pencil or a marker. Make sure that the locations are correct and consider the depth that you would like to drill. If your drill has a stop bar function, set it to the exact depth that you want to and make sure to read the instruction manual.
2. Use a protective gear especially goggles and gloves. Insert the appropriate masonry drill bit and set your drill into position. Place your feet firmly on the ground and hold the drill with both hands. If you don’t maintain your position, your wall can be damaged. There would be some recoil during the drilling but you must maintain your position.
3. Try to make a guide hole and drill will be easier to control. The drill must be operated carefully with firm hands. You should increase the speed slowly but if you are not able to control your hands, you can lower the speed at the regular intervals.
4. When drilling into concrete there can be small air pockets or stones in the concrete wall and it can cause the damage to drill so you have to be careful for this too.
5. If you hit a stone or any other obstruction, don’t try to force your way in. You can lose control and damage the concrete surface. The best way to deal with tough crack spots is by using a masonry nail and a hammer. Put the nail firmly in the place and put few taps with the hammer to break the stone. Once done with this, resume the dealing at a slower speed.
6. Pause every 20-30 seconds to remove away the concrete dust. Once you have drilled the hole, clean the concrete dust with the help of compressed air or vacuum cleaner. Remeber to wear goggles during this process too as concrete dust can damage your eyes.
7. You can repeat this process for other holes but try to give rest to the drill.